Package winding machine



July 20, 1937.

J. o. McKE AN PACKAGE WINDING MACHINE Filed Dec. 5, 1935 4 Sheets-Sheet 1 IN VENTOR.

' ATTORNEYS July 20, "1937. J. o. M KEAN 2,087,439

PACKAGE WINDING MACHINE Filed Dec. 5, 1955 .4 sheets-sheet 2 INVENTOR.

BY a

ATTORNEYS y 1937. J. o. M KEAN PACKAGE WINDING MACHINE Filed Dec. 5, 1935 4 Sheets-Sheet 3 ATTORNEYS July 20, 1937. J. o. M KEAN PACKAGE WINDING MACHINE Filed Dec. .5, 1935 4 Sheets-Sheet 4 INVENTOR ATToRy Ys Patented July 29, 1937 UNE'E'ED STAYS PACKAGE WKNDING MACHINE Application December 5, 1935, Serial No. 52,982

22 Claims.

My invention comprises, in a package winding machine, a yarn traversing cam roll and a package frictionally driven thereby, mechanism being provided for automatically periodically separating to a greater or lesser extent and contacting the package and its cam roll to alternately slow down and speed up the rotation of the package for the purpose of preventing so-called ribbon wind; the said mechanism being rendered ineffective during a predetermined period in the winding of the package so that the yarn may be wound smoothly and evenly on the package. This is particularly advantageous at the start of the winding of the package on an empty core. I

My invention further comprises means for adjustably controlling the frictional pressure of the package on the cam roll so'that any tendency toward unevenness or the formation of slight ridges on the package is eliminated and any tendency of the package to run unevenly or jump as it slows down and speeds up is prevented.

My invention still further comprises novel means for ensuring the full traverse of the yarn on the traverse cam roll.

My invention more specifically comprises mechanism frictionally connected to the rocking package support for automatically periodically moving the package partially or completely out of and into contact with its cam roll and where oppositely disposed cam rolls and their packages are provided for moving the packages alternately into and out of contact with their respective cam rolls.

A practical embodiment of my invention is represented in the accompanying drawings which illustrate a package winding machine of the type which is provided with two rows of yarn traversing cam rolls and their packages, said rows being located upon opposite sides of the machine.

Fig. 1 represents a detail end view of the package winding machine.

Fig. 2 represents a detail side view of the same.

Fig. 3 represents a detail end view of the eccentric control for the rock shaft lever arm.

Fig. 4 represents a detail side view on a larger scale of one of the winding units.

Fig. 5 represents a detail cross section taken in the plane of the line VV of Fig. 4, looking in the direction of the arrows, the parts being in the positions they assume when about to start the package winding operation.

fig. 6 represents a detail plan View of the friction connection between the rock shaft and the rocking support for the package.

Fig. 7 represents a detail cross section in the same plane as Fig. 5, the package being shown in full lines slightly raised from its yarn traversing cam roll and in dotted lines fully thrown off from the cam roll.

Fig. 8 represents a detail cross section in the same plane as Fig. 5 with a package of the opposite row shown in contact with its yarn traversing cam roll.

The oppositely disposed yarn traversing cam rolls are denoted by l, the shafts 2 of which cam rolls are driven from their respective electric motors 3 through belt and pulley connections 5 and 5, 6.

The packages l are wound on cores 1*, which cores in the present instance are shown as cones, the said packages being frictionally driven by their respective cam rolls I. These packages are carried by the arms 8 of rocking package supports 9 loosely mounted on a common rock shaft H]. For ensuring a smooth even wind of the packages the cam rolls and their package cores are made of different diameters which are not of equal ratios nor of fractionally equal ratios.

Mechanism is provided for automatically periodically moving the oppositely disposed packages alternately out of and into contact with their cam rolls so that as the packages along one side of the machine are moved out of contact with their cam rolls the packages along the opposite sides of the machine are moved into contact with their cam rolls.

This mechanism comprises the following elements: Each cam shaft 2 has a worm and gear connection I! and H with a rotary shaft 83, which shaft in turn has a chain and sprocket driving connection It and l5, It with a rotary shaft IT. This shaft H has a bevel gear connection l8, I9 with a stud shaft 28, which shaft in turn has an eccentric connection with one end of a link 2 i, the other end of which link is pivoted to the lower end of a depending lever arm 22. the upper end of which arm is fast on the rock shaft Ill.

The driving connection between the cam shaft 2 and the shaft 2|! is such that the speed of rotation of the shaft 2% is much slower than that of the cam shaft 2, thereby imparting a comparatively slow rocking movement to the shaft Hi. This rocking movement is just sufficient to bring the package and its cam roll out of and into frictional contact automatically and periodically during the winding of the package, after it has been wound regularly up to a predetermined amount.

The friction connection between the rock shaft l9 and the rocking support 9 is as follows:

Another lever arm 23 is fast on the rock shaft ID, to the outer end of which lever arm an uprising friction blade 24 is pivoted, which blade forms one member of'the saidfriction connec tion. A lever arm 25 projects from the rocking package support 9, said arm having an extension 25* which overlaps,and-frictionally contacts with one face of the friction blade24; A fiat bar spring 26 is secured to the lever arm 25, which spring overlaps and frictionally contacts with the opposite. face of the blade 24. screw 21 serves to adjust thepressure of the free 'end of the spring 26 against thefriction blade 7 24; This spring 25 forms the other ooacting @package through the friction connection" of member of the friction'connection. This friction blade 24 has a cut-away or thinned portion 28 which is located under the pressure end of the spring 26 when the package starts its winding operation, 'as in Fig. l, and the friction pressure of the spring is thus so slight on the blade that it renders the package moving mechanism ineffective to move the package periodically away from and into contact with its cam roll untilthe arm '25 and its spring 26 in the upward movement of the package support, due to the increase in size of the package, brings the pressure part of the spring onto the normal thickness of the blade. This will render the said mechanism effective to automatically periodically: move the spring andblade, outof and into contact with itsca m roll. This movement, it will be seen, alternately slows down and speeds up the rotation of the package, thereby eliminating ribbon wind thereon. l v

A stop. motion. is provided of well known or approved form, such; for instance, as one of the type shown in United 'States Letters Patent 1,958,060, May 8,1934. Only. such parts of the stop motion as have a bearing on my present invention will be specifically described herein.

The rocking support 9 has a depending arm 29 which is pivoted to a rack bar 30, the teeth of which are arranged to be brought into and out 'of engagement with a tooth on the depending arm 35 of a rock lever pivoted at 32, which rock leveris also provided with an uprising 'arm 33, to which a spring34 is attached for holding the arm 3| at the limit of its inward. movement. r

The hand lever which is, also pivoted at 32 is provided with three arms 35, as, 31, the arm 31 1 being provided with the usual handle 38 andrthe arm 35 being provided with the usual, hook pin 39.' A spring 48 engages the lever arm 36 for.

holding the handle38 in its raised position. 'A'

lug 4| .on the arm 35 is connected to one end of I a link 42, the other end of which linklis connected to the friction blade 24.

To ensure the full traverse of the yarnlon its we the bar as shown at 43-? so that the top of the bar is shorter and the bottom of the bar is An adjusting I ing. Y s l.

As above pointed out the parts are soparrangecl that as the package of one row is moved out of longer than the traverse of the yarn at this point.

necessity. of the operator 7 threading the'yarn under the bar 43 for, as the This obviates the winding operation starts, the yarn as it reaches the free end of the bar will, because of thedownwardly beveled end, automatically pass over the end and under the bar.- By causing the yarn to pass under the control bar $3 the yarn is prevented from jumping out of its guiding grooves in the cam roll I, thus ensuring the yarn being caused to fully complete its traverse movement.

To permit either row of packages to be wound f independently of the'other row I provide a pawl and ratchetconnection 5, 45, between the shaft l3 and the gear l2. This arrangement also allows for any variation in the speeds of the two motors 3. V r

In operation: For instance, if it be desired to render the package moving mechanism ineffec tive at the beginning of the Winding operation on the empty core, the parts are so adjusted that a the spring '26 exerts practicaliy no friction on the blade 26, thus rendering the package moving mechanism ineffective until the package is wound to a'predetermined size. As the package grows in size the spring 2E will travel upwardly along the blade 2 to a point where the friction between the spring and blade will be sufiicient" 'to render the package moving mechanism effective. As soon as this point is reached in the winding of the package the raising and lowering of the arm fast on therock shaft Ill will slowly move thepackage out of and into frictional contact with its cam roll, thus obviating any tendency of the yarn to ribbon windTonrthe package. It will be seen thatthis package moving mechanism will not affect in any way the throwing off of the package from its contact with the cam roll due to the completion of thepackage or due to the breakage or failure of the yarn supply. f

By rendering the anti-ribbon wind mechanism ineifective until the package has been wound to a predetermined size, it will be seen that, at the start, the yarn may be wound more evenly upon the core for a number of layers, thereby allowing the yarn to be unwound uninterruptedly from the the core without danger of snarling or sloughpackage at a subsequent operation, clear'to,

contact with its cam roll the package of the opposite row will be brought into contact. with its roll, hereby materially, lessening the power, re-

quired to drive the machine.

It will be understood that in using the term yarn,I wish to include thread, fcord or any. 2'

other elementsuitable for us'e'in winding packages.

It will also be understood that while I have described specifically. the operation of only one traverse cam roll an-d'the package driven frictionally thereby, themachine may include, any number of such traverse cam, rolls and packages;

It is evident that various changes may beresorted to in the construction, formand arrangement of the several parts without departing from the spirit and scope of my inventiomand hence I do not intend to be limited to the particular embodiment herein shown and described, but

What I claim is: 1 1. In a package winding machine, a yarn traversing cam roll, a package lrictio-nally driven thereby and mechanism for automatically periodically separating and contacting the package and roll without disturbing the parallelism of their contacting surfaces.

2. In a package Winding machine, oppositely disposed yarn traversing cam rolls, packages frictionally driven thereby and means including a common mechanism for automatically periodically separating and contacting one package and roll alternately with the other package and roll without disturbing the parallelism of their contacting surfaces.

3. In a package winding machine, a yarn traversing cam roll, a package frictionally driven thereby and mechanism for automatically periodically separating and contacting the package and roll, said mechanism being ineffective during a predetermined period in the winding of the package.

4. In a package Winding machine, oppositely disposed yarn traversing cam rolls, packages frictionally driven thereby and means including a common mechanism for automatically periodically separating and contacting one package and roll alternately with the other package and roll, said mechanism being ineffective during a predetermined period in the winding of the packages.

5. In a package winding machine, a yarn traversing cam roll, a package frictionally driven thereby, a rocking support for the package and mechanism frictionally connected to the rocking support for automatically periodically separating and contacting the package and roll without disturbing the parallelism of their contacting surfaces.

6. In a package winding machine, oppositely disposed yarn traversing cam rolls, packages frictionally driven thereby, rocking supports for the packages and means including a common mechanism frictionally connected to the rocking supports for automatically periodically separating and contacting one package and roll alternately with the other package and roll.

'7. In a package Winding machine, a yarn traversing cam roll, a package frictionally driven thereby, a rocking support for the package and mechanism frictionally connected to the rocking support for automatically periodically separating and contacting the package and roll, said mechanism being ineifective during a predetermined period in the Winding of the package.

8. In a package winding machine, oppositely disposed yarn traversing cam rolls, packages frictionally driven thereby, rocking supports for the packages and means including a common mechanism frictionally connected to the rocking supports for periodically separating and contacting one package and roll alternately with the other package and roll, said mechanism being ineffective during a predetermined period in the winding of the packages.

9. In a package winding machine, a yarn traversing cam roll, a package frictionally driven thereby and mechanism for automatically periodically moving the package out of and into contact with its cam roll without disturbing the parallelism of their contacting surfaces.

10. In a package winding machine, oppositely disposed yarn traversing cam rolls, packages frictionally driven thereby and means including a common mechanism for automatically periodically moving the packages alternately out of and into contact with their cam rolls.

11. In a package winding machine, a yarn traversing cam roll, a package frictionally driven thereby and mechanism for automatically periodically moving the package out of and into contact with its cam roll, said mechanism being ineffective during a predetermined period in the winding of the package.

12. In a package Winding machine, oppositely disposed yarn traversing cam rclls, packages frictionally driven thereby and means including 7 a common mechanism for automatically periodically moving the packages alternately out of and into contact with their cam rolls, said mechanism being ineffective during a. predetermined period in the winding of the packages.

13. In a package winding machine, a yarn traversing cam roll, a package frictionally driven thereby, a rocking support for the package and ersing cam roll, a package frictionally driven thereby, a rocking support for the package and mechanism friction-ally connected to the rocking support for periodically moving the package out of and into contact with its cam roll, said mechanism being ineffective during a predetermined period in the winding of the package.

16. In a package Winding machine, oppositely disposed yarn traversing cam rolls, packages frictionally driven thereby, rocking supports for the packages and means including a common mechanism frictionally connected to the rocking supports for periodically moving the packages alternately out of and into contact with their cam rolls, said mechanism being ineffective during a predetermined period in the winding of the packages.

17. In a package winding machine, a yarn traversing cam roll, a package frictionally driven thereby, a rock shaft, a rocking support for the package loosely mounted thereon, coacting friction members carried by the shaft and rocking support respectively and mechanism acting through said friction members for automatically periodically rocking the shaft to bring the package out of and into contact with its cam roll.

18. In a package Winding machine, a yarn traversing cam roll, a package frictionally driven thereby, a rock shaft, a rocking support for the.

package loosely mounted thereon, coacting friction members carried by the shaft and rocking support respectively and a common mechanism acting through said friction members for automatically periodically rocking the shaft to bring the package out of and into contact with its cam roll, the friction members being inefiective during a predetermined period in the winding of the package.

19. In a package winding machine, a yarn traversing cam roll, a package frictionally driven thereby, a rock shaft, a rocking support for the package loosely mounted thereon, coacting friction members carried by the shaft and rocking support respectively, mechanism. acting through said friction members for automatically periodically rocking the shaft to bring the package out of and into contact with its cam roll and manually controlled means for adjusting the friction between said friction'members.

20. In a package Winding machine, a yarn trava ersing' cam roll, a package frictionally driven thereby, a rock shaft, an arm fixed thereto, a fric- 7 tion blade member pivoted to the arm, a rocking support for the package loosely mounted on the rock shaft, an'arm fixed to the rocking support and a friction spring member carried by the arm in contact with the faced the blade andmechanism' acting through said friction blade and spring member for automatically: periodically rocking said shaft to bring the package out of and into contact with its cam roll;

21; In a package winding machine, a yarn traversing cam roll, a package frictionally driven thereby, a rock shaft, an arm fixed thereto, a friction blade member pivoted to the arm, a rocking support for the package loosely mounted on the a rock shaft, an arm fixed to the rocking support and a friction spring member carried by the arm in contact with the face of the blade and 2J,os7,4'sa 7 mechanism acting throughvsaid friction blade.

} ersing cam roll, a package frictionally driven thereby, a .rock shaft, an arm fixed thereto, a

friction blade member pivoted to the arm, a

rocking support for the'package loosely mounted on the rock shaft, an arm fixed tothe rocking support and a friction spring member carried by V the arm in contact with theface of the blade,i mechanism acting through said friction blade;

and spring member for automatically periodical ly rocking said shaft to bring the package out of and into contact with its cam roll and manual- 1y controlled means for adjusting the friction between saidfriction members 7 JOHN O. MCKEAN. 

